Patents Assigned to Che-Yu Li & Company LLC
  • Publication number: 20090096560
    Abstract: A relay including a coil or solenoid, at least one fixed substrate and a moving substrate, a plurality of braided electrical contact element contacts making contact with pads on the fixed and moving substrates, returning springs mounted on alignment pins, and an optional cover for hermetical sealing. A further embodiment presents a horizontally-moving armature actuated by one or more solenoids.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 16, 2009
    Applicant: CHE-YU LI & COMPANY, LLC
    Inventor: Che-Yu Li
  • Patent number: 7358603
    Abstract: A high-density electrical package utilizing an array of high performance demountable electrical contacts such as UEC, T-Spring, F-Spring and their equivalent contained in a carrier in the form of an interposer between one or more components and a substrate. The carrier is made of a thermally conductive metal or contains thermally conductive metal to provide heat-spreading or dissipation functions in addition to the function of the retention and alignment of the electrical contacts. The above interposer is used for chip attach for a single chip or a stack of chips in the package. The interposer provides electrical connections through individual electrical contact to another chip or to the substrate of the package. It provides also the heat spreading or dissipation function to the chips connected thermally to a particular interposer. The interposer can further be connected thermally to an external heat spreader when necessary.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: April 15, 2008
    Assignee: Che-Yu Li & Company, LLC
    Inventors: Che-Yu Li, Matti A. Korhonen
  • Publication number: 20080036071
    Abstract: A high-density electrical package utilizing an array of high performance demountable electrical contacts such as UEC, T-Spring, F-Spring and their equivalent contained in a carrier in the form of an interposer between one or more components and a substrate. The carrier is made of a thermally conductive metal or contains thermally conductive metal to provide heat-spreading or dissipation functions in addition to the function of the retention and alignment of the electrical contacts. The above interposer is used for chip attach for a single chip or a stack of chips in the package. The interposer provides electrical connections through individual electrical contact to another chip or to the substrate of the package. It provides also the heat spreading or dissipation function to the chips connected thermally to a particular interposer. The interposer can further be connected thermally to an external heat spreader when necessary.
    Type: Application
    Filed: August 10, 2006
    Publication date: February 14, 2008
    Applicant: Che-Yu Li & Company, LLC
    Inventors: Che-Yu Li, Matti A. Korhonen
  • Patent number: 7293995
    Abstract: An electrical contact formed from a compliant folded sheet that includes a top surface, a bottom surface, a first contact edge and a second contact edge. A plurality of corrugations are formed in the top surface and the bottom surface that terminate at the first contact edge and the second contact edge. A connector system having a housing that has a plurality of through openings. A plurality of electrical contacts, each being formed from a compliant folded sheet that includes a top surface, a bottom surface, a first contact edge and a second contact edge. A plurality of corrugations are formed in the top surface and the bottom surface that terminate at the first contact edge and the second contact edge.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 13, 2007
    Assignee: Che-Yu Li & Company, LLC
    Inventor: Che-Yu Li
  • Patent number: 7128592
    Abstract: A connector system including first housing having a first header, the first header including one or more conductive pads that are in electrical communication with a conductor. A second housing that is mateable with the first housing and includes a second header positioned on a mating face. The second header includes one or more conductive pad that are electrically engaged with a conductor and positioned in confronting relation with the one or more conductive pads of the first header. An interposer located between the first header and the second header, with an electrical contact that extends continuously through the interposer toward conductive pads on the first and second headers. The interposer is movable between a first position where the electrical contact is spaced away from the at least one of the conductive pads, and a second position where the electrical contact electrically engages one of the conductive pads.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: October 31, 2006
    Assignee: Che Yu Li & Company, LLC
    Inventor: Che-Yu Li
  • Publication number: 20060211276
    Abstract: An electrical contact formed from a plurality of interlaced and annealed wires by weaving or braiding the wires together to form a mesh, annealing the mesh, and cutting the annealed mesh so as to form a plurality of individual electrical contacts. A method for forming a precursor material for use in manufacturing an electrical contact is also provided that includes manipulating a plurality of wires so as to interlace the wires into a unitary structure The unitary structure is then annealed. An electrical contact may then be formed from the precursor material by elastically rolling a portion of the unitary structure so as to form a tube, annealing the tube, and then cutting the unitary structure so as to release the tube thereby to form an electrical contact.
    Type: Application
    Filed: April 11, 2006
    Publication date: September 21, 2006
    Applicant: Che-Yu Li & Company, LLC
    Inventor: CHE-YU LI
  • Patent number: 7040902
    Abstract: An electrical contact formed from a plurality of interlaced and annealed wires by weaving or braiding the wires together to form a mesh, annealing the mesh, and cutting the annealed mesh so as to form a plurality of individual electrical contacts. A method for forming a precursor material for use in manufacturing an electrical contact is also provided that includes manipulating a plurality of wires so as to interlace the wires into a unitary structure. The unitary structure is then annealed. An electrical contact may then be formed from the precursor material by elastically rolling a portion of the unitary structure so as to form a tube, annealing the tube, and then cutting the unitary structure so as to release the tube thereby to form an electrical contact.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: May 9, 2006
    Assignee: Che-Yu Li & Company, LLC
    Inventor: Che-Yu Li
  • Patent number: 7029289
    Abstract: A connector system including first housing having a first header, the first header including one or more conductive pads that are in electrical communication with a conductor. A second housing that is mateable with the first housing and includes a second header positioned on a mating face. The second header includes one or more conductive pad that are electrically engaged with a conductor and positioned in confronting relation with the one or more conductive pads of the first header. An interposer located between the first header and the second header, with a woven contact that extends continuously through the interposer toward conductive pads on the first and second headers. The interposer is movable between a first position where the woven contact is spaced away from the at least one of the conductive pads, and a second position where woven contact electrically engages one of the conductive pads.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: April 18, 2006
    Assignee: Che-Yu Li & Company LLC
    Inventor: Che-Yu Li